Just this week the 16-year-old pleaded guilty to two counts of murder, and will be sentenced in September. Police say that Parker left school early the day he would kill his parents, and first attacked his mother, before waiting for his father to come home.

Vincent Parker attacked his mother Carol as she emerged from an upstairs bathroom in their Bland Street home. He admitted to police he doused his mother with pepper spray, stabbed her in the eye, and then beat her in the face and head with a baseball bat and a crowbar "until she stopped breathing." A medical examiner identified 25 separate smashes and stabs to Carol Parker's neck, face and head.

When Vincent's father Wayne Parker came home, Vincent struck him with a crowbar and stabbed him several times. Wayne Parker lived long enough to tell police what happened.

In all, authorities found a crowbar, bat, and five knives at the house.